Acute poisoning is due to A a high dose over a short period of time. B none of these. C a low dose over a long period of time. D a low dose over a short period of time.

The correct answer is A: a high dose over a short period of time.<br /><br />Acute poisoning occurs when a person is exposed to a large amount of a toxic substance in a short period of time. This can happen suddenly, such as from ingesting a large dose of a drug or toxin, inhaling a toxic gas, or being exposed to a harmful chemical. Acute poisoning can cause severe symptoms and require immediate medical attention.